﻿/* ==============================================================================
*
*   Copyright (c) 2010, Pierre Favier
*   All rights reserved.
*
*   NTasking is free software: you can redistribute it and/or modify it
*   under the terms of the GNU General Public License as published by the
*   Free Software Foundation.
*
*   Redistribution and use in source and binary forms, with or without
*   modification, are permitted provided that the following conditions
*   are met:
*
*   -   Redistributions of source code must retain the above copyright notice,
*       this list of conditions and the following disclaimer.
*
*   -   Redistributions in binary form must reproduce the above
*       copyright notice, this list of conditions and the following
*       disclaimer in the documentation and/or other materials
*       provided with the distribution.
*
*   THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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*   OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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*   BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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*   TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* ============================================================================== */

using System;
using NTasking;
using NTaskingQuickStart.Logging;
using NTaskingQuickStart.Printing;

namespace NTaskingQuickStart.Offices
{

    public class SubContractor : Task
    {

        private const double JobTime = 1.0;


        [Entry]
        public Func<string, Office, bool> SignContract { get; private set; }
        
        
        [Entry]
        public Action GoOnHoliday { get; private set; }
        
        
        public SubContractor(int contractorId)
        {
            Name = contractorId.ToString();
        }
        
        
        protected override void Body()
        {
            bool onHoliday = false;
            Office contractor = null;
            string signedContract = null;
            
            while (true)
            {
                bool holiday = onHoliday;

                Select(s => s.
                    When(() => !holiday).
                    Accept(SignContract, (string contract, Office with) =>
                    {
                        signedContract = contract;
                        contractor = with;
                        return true;
                    }).
                    Then(() =>
                    {
                        // Simulate working on the execution of the contract
                        Ada.Delay(JobTime);
                        
                        PrintStatus status = contractor.Printer.Print(string.Format("{0}_deliverable_{1}.txt",
                                                                                    this,
                                                                                    signedContract));
                        
                        Logger.WriteLine(string.Format("Print result for deliverable {0} : {1}",
                                                    signedContract,
                                                    status));
                    }).
                Or.
                    When(() => holiday).
                    Accept(SignContract, (string contract, Office with) =>
                    {
                        Logger.WriteLine("Sorry, I am not available at the moment");
                        return false;
                    }).
                Or.
                    Accept(GoOnHoliday).
                    Then(() =>
                    {
                        Console.WriteLine("I am on holiday");
                        onHoliday = true;
                    }).
                Or.
                    Terminate);
            }
// ReSharper disable FunctionNeverReturns
        }
// ReSharper restore FunctionNeverReturns
        
    }
}